Whether you want to toss a Frisbee, walk your dog, spread a blanket and catch some sun or go for a hike there is a park in the area that will suit your needs. And if you are seeking a place for your dog to play there are two dog parks. Both Champaign and Urbana have very good park districts with a wide range of offerings.
Not everything in this part of Illinois is flat. There are deep woods, ravines and hills within a short drive of Champaign-Urbana.